#include <stdlib.h>
#include <stdio.h>
#include <string.h>
#include "crypto_hash_sha512.h"
#include "keygen.h"
#include "curve_sigs.h"
#include "xeddsa.h"
#include "crypto_additions.h"
#include "ge.h"
#include "utility.h"
#include "gen_x.h"
#include "internal_slow_tests.h"
#include <assert.h>


#define ERROR(...) do {if (!silent) { printf(__VA_ARGS__); abort(); } else return -1; } while (0)
#define INFO(...) do {if (!silent) printf(__VA_ARGS__);} while (0)

#define TEST(msg, cond) \
  do {  \
    if ((cond)) { \
      INFO("%s good\n", msg); \
    } \
    else { \
      ERROR("%s BAD!!!\n", msg); \
    } \
  } while (0)


int curvesigs_slow_test(int silent, int iterations) {

    unsigned char signature_10k_correct[64] = {
            0xfc, 0xba, 0x55, 0xc4, 0x85, 0x4a, 0x42, 0x25,
            0x19, 0xab, 0x08, 0x8d, 0xfe, 0xb5, 0x13, 0xb6,
            0x0d, 0x24, 0xbb, 0x16, 0x27, 0x55, 0x71, 0x48,
            0xdd, 0x20, 0xb1, 0xcd, 0x2a, 0xd6, 0x7e, 0x35,
            0xef, 0x33, 0x4c, 0x7b, 0x6d, 0x94, 0x6f, 0x52,
            0xec, 0x43, 0xd7, 0xe6, 0x35, 0x24, 0xcd, 0x5b,
            0x5d, 0xdc, 0xb2, 0x32, 0xc6, 0x22, 0x53, 0xf3,
            0x38, 0x02, 0xf8, 0x28, 0x28, 0xc5, 0x65, 0x05,
    };

    int count;
    const int MSG_LEN = 200;
    unsigned char privkey[32];
    unsigned char pubkey[32];
    unsigned char signature[64];
    unsigned char msg[MSG_LEN];
    unsigned char random[64];

    memset(privkey, 0, 32);
    memset(pubkey, 0, 32);
    memset(signature, 0, 64);
    memset(msg, 0, MSG_LEN);
    memset(random, 0, 64);

    /* Signature random test */
    INFO("Pseudorandom curvesigs...\n");
    for (count = 1; count <= iterations; count++) {
        unsigned char b[64];
        crypto_hash_sha512(b, signature, 64);
        memmove(privkey, b, 32);
        crypto_hash_sha512(b, privkey, 32);
        memmove(random, b, 64);

        sc_clamp(privkey);
        curve25519_keygen(pubkey, privkey);

        curve25519_sign(signature, privkey, msg, MSG_LEN, random);

        if (curve25519_verify(signature, pubkey, msg, MSG_LEN) != 0)
            ERROR("Curvesig verify failure #1 %d\n", count);

        if (b[63] & 1)
            signature[count % 64] ^= 1;
        else
            msg[count % MSG_LEN] ^= 1;
        if (curve25519_verify(signature, pubkey, msg, MSG_LEN) == 0)
            ERROR("Curvesig verify failure #2 %d\n", count);

        if (count == 10000) {
            if (memcmp(signature, signature_10k_correct, 64) != 0)
                ERROR("Curvesig signature 10K doesn't match %d\n", count);
        }
        if (count == 100000)
            print_bytes("100K curvesigs", signature, 64);
        if (count == 1000000)
            print_bytes("1M curvesigs", signature, 64);
        if (count == 10000000)
            print_bytes("10M curvesigs", signature, 64);
    }
    INFO("good\n");
    return 0;
}

int xeddsa_slow_test(int silent, int iterations) {

    unsigned char signature_10k_correct[64] = {
            0x15, 0x29, 0x03, 0x38, 0x66, 0x16, 0xcd, 0x26,
            0xbb, 0x3e, 0xec, 0xe2, 0x9f, 0x72, 0xa2, 0x5c,
            0x7d, 0x05, 0xc9, 0xcb, 0x84, 0x3f, 0x92, 0x96,
            0xb3, 0xfb, 0xb9, 0xdd, 0xd6, 0xed, 0x99, 0x04,
            0xc1, 0xa8, 0x02, 0x16, 0xcf, 0x49, 0x3f, 0xf1,
            0xbe, 0x69, 0xf9, 0xf1, 0xcc, 0x16, 0xd7, 0xdc,
            0x6e, 0xd3, 0x78, 0xaa, 0x04, 0xeb, 0x71, 0x51,
            0x9d, 0xe8, 0x7a, 0x5b, 0xd8, 0x49, 0x7b, 0x05,
    };

    int count;
    const int MSG_LEN = 200;
    unsigned char privkey[32];
    unsigned char pubkey[32];
    unsigned char signature[96];
    unsigned char msg[MSG_LEN];
    unsigned char random[64];

    memset(privkey, 0, 32);
    memset(pubkey, 0, 32);
    memset(signature, 1, 64);
    memset(msg, 0, MSG_LEN);
    memset(random, 0, 64);

    /* Signature random test */
    INFO("Pseudorandom XEdDSA...\n");
    for (count = 1; count <= iterations; count++) {
        unsigned char b[64];
        crypto_hash_sha512(b, signature, 64);
        memmove(privkey, b, 32);
        crypto_hash_sha512(b, privkey, 32);
        memmove(random, b, 64);

        sc_clamp(privkey);
        curve25519_keygen(pubkey, privkey);

        xed25519_sign(signature, privkey, msg, MSG_LEN, random);

        if (xed25519_verify(signature, pubkey, msg, MSG_LEN) != 0)
            ERROR("XEdDSA verify failure #1 %d\n", count);

        if (b[63] & 1)
            signature[count % 64] ^= 1;
        else
            msg[count % MSG_LEN] ^= 1;
        if (xed25519_verify(signature, pubkey, msg, MSG_LEN) == 0)
            ERROR("XEdDSA verify failure #2 %d\n", count);

        if (count == 10000) {
            if (memcmp(signature, signature_10k_correct, 64) != 0)
                ERROR("XEDSA signature 10K doesn't match %d\n", count);
        }
        if (count == 100000)
            print_bytes("100K XEdDSA", signature, 64);
        if (count == 1000000)
            print_bytes("1M XEdDSA", signature, 64);
        if (count == 10000000)
            print_bytes("10M XEdDSA", signature, 64);
    }
    INFO("good\n");
    return 0;
}

int xeddsa_to_curvesigs_slow_test(int silent, int iterations) {
    unsigned char signature_10k_correct[64] = {
            0x33, 0x50, 0xa8, 0x68, 0xcd, 0x9e, 0x74, 0x99,
            0xa3, 0x5c, 0x33, 0x75, 0x2b, 0x22, 0x03, 0xf8,
            0xb5, 0x0f, 0xea, 0x8c, 0x33, 0x1c, 0x68, 0x8b,
            0xbb, 0xf3, 0x31, 0xcf, 0x7c, 0x42, 0x37, 0x35,
            0xa0, 0x0e, 0x15, 0xb8, 0x5d, 0x2b, 0xe1, 0xa2,
            0x03, 0x77, 0x94, 0x3d, 0x13, 0x5c, 0xd4, 0x9b,
            0x6a, 0x31, 0xf4, 0xdc, 0xfe, 0x24, 0xad, 0x54,
            0xeb, 0xd2, 0x98, 0x47, 0xf1, 0xcc, 0xbf, 0x0d

    };

    int count;
    const int MSG_LEN = 200;
    unsigned char privkey[32];
    unsigned char pubkey[32];
    unsigned char signature[96];
    unsigned char msg[MSG_LEN];
    unsigned char random[64];

    memset(privkey, 0, 32);
    memset(pubkey, 0, 32);
    memset(signature, 2, 64);
    memset(msg, 0, MSG_LEN);
    memset(random, 0, 64);

    /* Signature random test */
    INFO("Pseudorandom XEdDSA/Curvesigs...\n");
    for (count = 1; count <= iterations; count++) {
        unsigned char b[64];
        crypto_hash_sha512(b, signature, 64);
        memmove(privkey, b, 32);
        crypto_hash_sha512(b, privkey, 32);
        memmove(random, b, 64);

        sc_clamp(privkey);
        curve25519_keygen(pubkey, privkey);

        xed25519_sign(signature, privkey, msg, MSG_LEN, random);

        if (curve25519_verify(signature, pubkey, msg, MSG_LEN) != 0)
            ERROR("XEdDSA/Curvesigs verify failure #1 %d\n", count);

        if (b[63] & 1)
            signature[count % 64] ^= 1;
        else
            msg[count % MSG_LEN] ^= 1;
        if (curve25519_verify(signature, pubkey, msg, MSG_LEN) == 0)
            ERROR("XEdDSA/Curvesigs verify failure #2 %d\n", count);

        if (count == 10000) {
            if (memcmp(signature, signature_10k_correct, 64) != 0)
                ERROR("XEdDSA/Curvesigs signature 10K doesn't match %d\n", count);
        }
        if (count == 100000)
            print_bytes("100K XEdDSA/C", signature, 64);
        if (count == 1000000)
            print_bytes("1M XEdDSA/C", signature, 64);
        if (count == 10000000)
            print_bytes("10M XEdDSA/C", signature, 64);
    }
    INFO("good\n");
    return 0;
}

int generalized_xveddsa_slow_test(int silent, int iterations) {
    unsigned char signature_10k_correct[96] = {
            0x89, 0x21, 0xf5, 0x2f, 0x37, 0x72, 0x08, 0x55,
            0x18, 0x9d, 0x24, 0xed, 0x86, 0xb1, 0x7a, 0x02,
            0xbf, 0x29, 0x5e, 0xa7, 0x45, 0xdc, 0x80, 0x03,
            0x7f, 0x4f, 0xca, 0x79, 0xe0, 0x95, 0xd0, 0xa1,
            0xb5, 0x99, 0xbe, 0xbd, 0xef, 0xbe, 0xa4, 0xdc,
            0x0c, 0x07, 0x6a, 0xf7, 0x7f, 0xe1, 0x1c, 0xb8,
            0x18, 0x84, 0xb8, 0xb4, 0xcf, 0x38, 0x7d, 0x98,
            0x37, 0xd8, 0x40, 0x23, 0x42, 0x12, 0x70, 0x06,
            0xb0, 0xd1, 0x0c, 0xc0, 0x1c, 0xa6, 0x9a, 0x2f,
            0xb4, 0x02, 0xd6, 0x37, 0x22, 0xe9, 0xfb, 0x00,
            0x22, 0x02, 0x5a, 0xf4, 0x40, 0x43, 0xb8, 0xe9,
            0xf4, 0x13, 0x44, 0x16, 0x19, 0x8d, 0x7e, 0x02,
    };
    unsigned char signature_100k_correct[96] = {
            0xc4, 0x99, 0x64, 0x1f, 0x94, 0x95, 0xf4, 0x57,
            0xa0, 0xb9, 0x3d, 0xc3, 0xb5, 0x2e, 0x1e, 0xdd,
            0x92, 0xf2, 0x4c, 0xb2, 0x01, 0x36, 0x3d, 0xf2,
            0xea, 0x2c, 0xdc, 0x32, 0x21, 0x5f, 0xc5, 0xd2,
            0xff, 0x16, 0x41, 0x71, 0x3a, 0x77, 0x79, 0xeb,
            0x67, 0x20, 0xc4, 0xec, 0x39, 0xe1, 0x54, 0x2d,
            0x40, 0x10, 0xf9, 0xca, 0xc5, 0x21, 0x0a, 0x47,
            0x63, 0x99, 0x23, 0x04, 0x9d, 0x03, 0x1a, 0x06,
            0x00, 0xb9, 0x56, 0x7e, 0xef, 0xee, 0x0b, 0x40,
            0x59, 0xc1, 0x86, 0xd9, 0xa7, 0x87, 0x70, 0xec,
            0x05, 0x89, 0xbe, 0x71, 0x43, 0xd1, 0xf5, 0x61,
            0x5e, 0x00, 0x41, 0xde, 0x1f, 0x41, 0x2d, 0x0e,
    };


/*
  unsigned char signature_1m_correct[96] = {
  0xf8, 0xb1, 0x20, 0xf2, 0x1e, 0x5c, 0xbf, 0x5f, 
  0xea, 0x07, 0xcb, 0xb5, 0x77, 0xb8, 0x03, 0xbc, 
  0xcb, 0x6d, 0xf1, 0xc1, 0xa5, 0x03, 0x05, 0x7b, 
  0x01, 0x63, 0x9b, 0xf9, 0xed, 0x3e, 0x57, 0x47, 
  0xd2, 0x5b, 0xf4, 0x7e, 0x7c, 0x45, 0xce, 0xfc, 
  0x06, 0xb3, 0xf4, 0x05, 0x81, 0x9f, 0x53, 0xb0, 
  0x18, 0xe3, 0xfa, 0xcb, 0xb2, 0x52, 0x3e, 0x57, 
  0xcb, 0x34, 0xcc, 0x81, 0x60, 0xb9, 0x0b, 0x04, 
  0x07, 0x79, 0xc0, 0x53, 0xad, 0xc4, 0x4b, 0xd0, 
  0xb5, 0x7d, 0x95, 0x4e, 0xbe, 0xa5, 0x75, 0x0c, 
  0xd4, 0xbf, 0xa7, 0xc0, 0xcf, 0xba, 0xe7, 0x7c, 
  0xe2, 0x90, 0xef, 0x61, 0xa9, 0x29, 0x66, 0x0d,
  };

  unsigned char signature_10m_correct[96] = {
  0xf5, 0xa4, 0xbc, 0xec, 0xc3, 0x3d, 0xd0, 0x43, 
  0xd2, 0x81, 0x27, 0x9e, 0xf0, 0x4c, 0xbe, 0xf3, 
  0x77, 0x01, 0x56, 0x41, 0x0e, 0xff, 0x0c, 0xb9, 
  0x66, 0xec, 0x4d, 0xe0, 0xb7, 0x25, 0x63, 0x6b, 
  0x5c, 0x08, 0x39, 0x80, 0x4e, 0x37, 0x1b, 0x2c, 
  0x46, 0x6f, 0x86, 0x99, 0x1c, 0x4e, 0x31, 0x60, 
  0xdb, 0x4c, 0xfe, 0xc5, 0xa2, 0x4d, 0x71, 0x2b, 
  0xd6, 0xd0, 0xc3, 0x98, 0x88, 0xdb, 0x0e, 0x0c, 
  0x68, 0x4a, 0xd3, 0xc7, 0x56, 0xac, 0x8d, 0x95, 
  0x7b, 0xbd, 0x99, 0x50, 0xe8, 0xd3, 0xea, 0xf3, 
  0x7b, 0x26, 0xf2, 0xa2, 0x2b, 0x02, 0x58, 0xca, 
  0xbd, 0x2c, 0x2b, 0xf7, 0x77, 0x58, 0xfe, 0x09,
  };
  */

    int count;
    const int MSG_LEN = 200;
    unsigned char privkey[32];
    unsigned char pubkey[32];
    unsigned char signature[96];
    unsigned char msg[MSG_LEN];
    unsigned char random[64];
    unsigned char vrf_out[32];

    memset(privkey, 0, 32);
    memset(pubkey, 0, 32);
    memset(signature, 3, 96);
    memset(msg, 0, MSG_LEN);
    memset(random, 0, 64);

    INFO("Pseudorandom XVEdDSA...\n");
    for (count = 1; count <= iterations; count++) {
        unsigned char b[64];
        crypto_hash_sha512(b, signature, 96);
        memmove(privkey, b, 32);
        crypto_hash_sha512(b, privkey, 32);
        memmove(random, b, 64);

        sc_clamp(privkey);
        curve25519_keygen(pubkey, privkey);

        generalized_xveddsa_25519_sign(signature, privkey, msg, MSG_LEN, random, NULL, 0);

        if (generalized_xveddsa_25519_verify(vrf_out, signature, pubkey, msg, MSG_LEN, NULL, 0) != 0)
            ERROR("XVEdDSA verify failure #1 %d\n", count);

        if (b[63] & 1)
            signature[count % 96] ^= 1;
        else
            msg[count % MSG_LEN] ^= 1;

        if (generalized_xveddsa_25519_verify(vrf_out, signature, pubkey, msg, MSG_LEN, NULL, 0) == 0)
            ERROR("XVEdDSA verify failure #2 %d\n", count);

        if (count == 10000)
            print_bytes("10K XVEdDSA", signature, 96);
        if (count == 100000)
            print_bytes("100K XVEdDSA", signature, 96);
        if (count == 1000000)
            print_bytes("1M XVEdDSA", signature, 96);
        if (count == 10000000)
            print_bytes("10M XVEdDSA", signature, 96);
        if (count == 100000000)
            print_bytes("100M XVEdDSA", signature, 96);

        if (count == 10000) {
            if (memcmp(signature, signature_10k_correct, 96) != 0)
                ERROR("XVEDDSA 10K doesn't match %d\n", count);
        }
        if (count == 100000) {
            if (memcmp(signature, signature_100k_correct, 96) != 0)
                ERROR("XVEDDSA 100K doesn't match %d\n", count);
        }
        /*
        if (count == 1000000) {
          if (memcmp(signature, signature_1m_correct, 96) != 0)
            ERROR("XVEDDSA 1m doesn't match %d\n", count);
        }
        if (count == 10000000) {
          if (memcmp(signature, signature_10m_correct, 96) != 0)
            ERROR("XVEDDSA 10m doesn't match %d\n", count);
        }
        if (count == 100000000) {
          if (memcmp(signature, signature_100m_correct, 96) != 0)
            ERROR("XVEDDSA 100m doesn't match %d\n", count);
        }
        */
    }
    INFO("good\n");
    return 0;
}
